Prosthetic valve with pores

a technology of prosthesis and pores, applied in the field of medical devices, can solve the problems of loss of effectiveness, physical manifestation and pathology, and the insufficientness of venous valves, and achieve the effect of reducing the risk of vascular valve rupture, reducing the effectiveness of vascular valves, and improving the quality of vascular valves

Active Publication Date: 2006-03-16
COOK MEDICAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] The present invention provides valves for implantation in body vessels and other suitable environments. In one exemplary embodiment, a valve comprises a leaflet that has a valve portion that is moveable between first and second positions. In the first position, the leaflet permits fluid flow in a first direction through a body ve

Problems solved by technology

Varying fluid pressures over time, however, can introduce a reverse flow direction in the vessel.
While natural valves may function for an extended time, some may lose effectiveness, which can lead to physical manifestations and pathology.
For example, venous valves are susceptible to becoming insufficient due to one or more of a variety of factors.
Over time, the vessel

Method used

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Examples

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Embodiment Construction

[0009] The present invention provides valves for implantation in body vessels and other suitable environments. In one exemplary embodiment, a valve comprises a leaflet that has a valve portion that is moveable between first and second positions. In the first position, the leaflet permits fluid flow in a first direction through a body vessel in which the valve is implanted. In the second position, the leaflet substantially prevents fluid flow through the body vessel in a second, opposite direction. The leaflet defines a plurality of pores, and the valve includes a means for maintaining an axial position of the leaflet in the body vessel in which the valve is implanted.

[0010] In another exemplary embodiment, a valve comprises a support frame having radially compressed and radially expanded configurations. The valve includes at least one leaflet attached to the support frame that defines a plurality of pores. At least a portion of the at least one leaflet is moveable between first and...

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Abstract

Prosthetic valves for regulating fluid flow are provided. The valves have at least one leaflet that includes a plurality of pores that allow a quantity of retrograde flow to pass through the leaflet when the valve is in a closed configuration.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims priority to U.S. Provisional Application Ser. No. 60 / 608,605 filed on Sep. 10, 2004, the disclosure of which is hereby incorporated into this disclosure in its entirety.FIELD OF THE INVENTION [0002] The present invention relates to medical devices. More particularly, the invention relates to intraluminal valve prostheses. BACKGROUND OF THE INVENTION [0003] Many vessels in animal bodies transport fluids from one bodily location to another. Frequently, fluid flows in a unidirectional manner along the length of the vessel. Varying fluid pressures over time, however, can introduce a reverse flow direction in the vessel. In some vessels, such as mammalian veins, natural valves are positioned along the length of the vessel and act as one-way check valves that open to permit the flow of fluid in the desired direction and close to prevent fluid flow in a reverse direction, i.e., retrograde flow. The valves can change from...

Claims

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Application Information

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IPC IPC(8): A61F2/04A61F2/06
CPCA61F2/04A61F2/2412A61F2/2418A61F2230/0095A61F2220/0016A61F2220/0058A61F2230/0026A61F2/2475
Inventor CASE, BRIAN C.KIRTS, BETH ANNOSBORNE, THOMAS A.
Owner COOK MEDICAL TECH LLC
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